In psoriasis, we have found that IL-17E, produced by epidermal keratinocytes in the lesional skin, activates dermal macrophages to produce inflammatory cytokines, including TNF, and neutrophil chemokines, such as IL-8.
Does Th17 produce IL-17?
Interleukin-17 (IL-17) and IL-17-producing cells have been shown to play important roles in inflammation and the immune response. IL-17 is believed to be mainly produced by T helper 17 (Th17) cells, a unique helper T-cell subset different from Th1 and Th2 cells.
What is the difference between IL-17A and IL-17F?
Despite the large number of double- positive cells in these models, IL-17F is dispensable for autoimmune tissue inflammation whereas IL-17A-deficient mice show reduced disease (Ishigame et al., 2009).
What activates Th17?
The secretion of IL-23 from antigen-presenting cells such as dendritic cells, which have been activated by the uptake and processing of pathogens, in turn activates Th17 cells.
What stimulates Th17?
Due to the pro-inflammatory effects of IL-17A and IL-17F, exploring the origin and function of Th17 cells may be beneficial for inflammatory disease therapy. It is widely acknowledged that Th17 cells can be stimulated by the combination of transforming growth factor-β (TGF-β) and IL-6 or by the IL-23p40 pathway alone.
How do you get psoriasis and is it contagious?
Psoriasis is not contagious. It is not transmissible from person to person, and you cannot get psoriasis from touching a lesion on a person who has psoriasis. Psoriasis lesions, even pustular ones, are not infectious or contagious.
What are the new drugs for the treatment of plaque psoriasis?
The new drug, Cosentyx (secukinumab), is injected under the skin. The drug blocks a protein involved in the inflammatory response that causes plaque psoriasis, according to the FDA.
What is nail psoriasis, and how can I treat it?
Treatments for nail psoriasis. Nail psoriasis can be hard to treat because psoriasis affects the nail as it grows. Treatment options include: a prescription steroid that you rub onto your nail or your doctor injects into the affected nail bed. oral antifungal drugs to treat fungal infections caused by nail psoriasis.
